Improvement in tenter-clothing



A. SPITZLI 8; T. -`1- LA.OY.

Tenter Clothing.

Patented Nov. 4,1879.

UNITED STATES PA'I'B'INT OFFICE.

ALFRED SPITZLI AND THOMAS J. LAOY, OF WEST TROY, NEW YORK, SAID SPITZLI ASSIGrN-OB TO SAID DAOY.

IlVIPROVEM ENT iN TENTER-GLOTHING:

Specification forming part of Letters Patent No. 991,369, dated November 4, 1879, application filed March 8, 1879.

T0 all 'ZULOIIL t't may; concern:

Be it known that we, ALFRED SPITZLI and THOMAS J. LAOY, both of lVest Troy, in the county of Albany and State of New York, have invented certain new and useful Iln provements in Tenter-Olothing, and we do hereby declare that the followingis a full, clear, and exact description of the invention, which will enable others Skilled in the art to which t apperta-ins to make and use the same, reference being had to the accompanying drawings, which form :.1 part of this specification, and in which- Figure l is a perspective view of one of the bars or beams of a tenter-frarne for stretchin g cloth having our improvement applied thereto, anti Fig. 2 is a cross-section of the same.

Similar letters of reference indicate corresponding parts in both the gures.

This invention a-ppertains to certain lll provernents in that class of devices termed technically tenter-frames or tenter-bars, which 'are used for stretching cloth, and it consists in an improved construction of the clothing of said bars, as hereinat'ter 1nore fully set forth, and particularly pointed out in the claim.

As heretofore made tenter-clothing has atlat or smootl1 face provided with a row or series of vertical pins, which areinserted through the selvage-edges of the clotl1 previous to the operation of stretching, or, in some'cases, the bar or clothing, instead of being flat, is manysided or polygonal in cross-section, and the cloth-holding pins are inserted into one of the inclined or slopin g faces of the bar, from which they project slantingly and outwardly.

Our improved clothing com bines the advantage of this last-na1ned construction, as hereinafter set forth, with tha-t of having a sharp edge or ridge, over which the cloth laps on both sides of the frame, which said ridge, in stretchin g, bears against the under side of the fabric along cach of its edges, the extreme ends of whichare held firmly by the inclined rows of pins.

In the drawings hereto annexed, the letter A represents one of the bars of atenter-franne, and (3 is our improved clothing. This consists of a wooden slat or bar With a stuooth and Hat under side to iit the flat top of the bar A, upon which it is secured, an inner side or face at right angles to the base, adownwardly and outwardly sloping top, 60, which terminates in a narrow ledge, C', Overlapping the bar A.

B B are the cloth-holding pins or books,

which are set into the sloping face clb of the clothing, so as to project outwardl y, as clearly shown in the drawings, their point-s falling below the top edge or ridge CZ. This arrangement of the pins draws the cloth inserted upon them toward their base, allowing them to get 'rt firm hold without danger of the cloth or fabric to be stretched slipping off; but at the same time the sharp edge or ridgect will bear against the under side of the fabric along each of its edges, and thereby, as itwere, equalize the strain caused by the pins at regular intervals, there being a dowoward tendency of the fabric again'st said sharp edge or ridge, on account of the pins B drawing the cloth from a row Of points some distance below said ridge.

Having thus described ourinvention, we do not claim, broadly, tenter-clothin g having an inclined or sloping face provided with a row of inclined outwardly-projecting pins, but

\Ve claim as our improvement and desire to secure by Letters Patent of the United States- The *center-clothing 0, having a sharp top edge or ri d ge, d, and a beveled or slopin g face, c, provided near its lower edge with a series of inclined outwardly-projecting pins, B, substantially as set forth.

In testimonythat we claim the foregoing as our own we have hereto affixed our signatures in presence of two witnesses.

ALFRED SPITZLI. THOMAS J. LAOY.

Witnesses:

JOHN GLOTWOI'ITIY, J NO. W. LYON. 

